Improvement in soda-fountains



2 Sheets-Sheet 1.

J. B. CHAPMAN.

- SODA-FOUNTAIN.

No.173-,4=44. Patented Feb. 15, 18 76.

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v ZSheets-Sheet Z.

I. B. CHAPMAN. SODA-FOUNTAIN.

' Patented Feb..15,1876.

No.173fiH4.

II-NITED STATES I PATENT OFFICE.

JOHN B. CHAPMAN, OF MADISON, INDIANA, ASSIGNOR TO HIMSELF, SAMUEL J.SMITH, AND NANCY M. CHAPMAN, OF SAME PLACE.

IMPROVEMENT IN S ODA-FOUNTAINS.

Specification forming part of Letters Patent No. 173,444, dated February15, 1876; application filed J anuary 12, 1876.

To all whom it may concern:

Be it known that I, JOHN B. CHAPMAN, of Madison, in the county ofJefferson and State of Indiana, have invented certain Improvements inSoda-Fountains, of which the following is a specification This inventionrelates to that class-of fountains wherein the soda-water is forced outihrough the drafttube by the-stroke of a pump-plunger; and it consistspartly in a novel construction and combination of the treadles, parallelrods, and plunger-rod; also, in the novel construction of the plunger.

In the drawings, Figure l is avertical seciio'n of a fountain embodyingmy improvements taken in the plane of theline .00 a; in Fig. 2. Fig. 2is a transverse section of the same, taken in the plane of the hue 3y'in Fig. 1. Fig. 3 is a plan or bottom view, showing the arrangement ofthe treadles.

Let A'represent a cap or cover, which serves as a delivery-counter, Bthe base, and C Cthe columns connecting the two. D is a sodawaterreservoir. E the pump, F the plungerrod, 01. the draft-pipe, and b thedraft-tube.

All of the above-named parts, arranged substantiallyas herein shown, arecommon to (his class of fountains, and may be seen in the patent toJames W. Chapmap', dated June 29, 1869. The said patent alsoshows anarrangement of double treadles, on which the deyice I willnow describeis an improvement.

To the upper endof the plunger-rod F- is secured a cross-head, G, to theends of which are attached parallel rods H H. These rods extend down atopposite sides of the reservoir and take hold of treadles I l at thepoints 0 0, respectively. The treadles may be provided with pedals d d,as shown. The

treadle I is pivotedto the frame at e, and a downward pressure on thepedal (1 causes the plunger J to descend and force the soda-water outthrough the draft-tube a. The treadle I is secured at c by a link orloose joint, and the two treadles are connected by a pin, or itsequivalent, at a point, g, midway between the points 0 t. Theconsequence is that the pressure on the pedal d acts equally, throughthe connection g, on both parallel rods H H, and thus the plunger-rod Freceives a direct vertical pressure, free from side draft. As the pedald moves down, the pedal d moves up, and vice versa. A downward pressureon the pedal cl serves to fill the pump-chamber, This filling isaccomplished by means of the peculiar construction of the plunger.plunger-rod F is made, preferably, of wood, and the body of the plungeris apart of the same. In it h is an opening or passage for the waterfrom the reservoir to the pumpchaiiiber, and it is controlled by avalve, '5, opening downward. An annular washer, j, secured to theplunger byscrews, serves to secure and expand a packing-ring, 7c, ofrubber or other similar material. K represents a perforated diaphragm,arranged vertically within the reservoir D. This forms no part of mypresent invention, however, and need not be more fully described.

The water-reservoir may be, as usual, placed inside asheet-metalcylinder, and the space between befilled with some non-conductingmaterial. It is preferable to have the parallel rods pass downthroughpipes, as shown.

Having thus described my invention, I claim- 1. In a soda-fountain, thecombination of the treadles I 1, parallel rods H H, and

plunger-rod F, constructed and arranged to operate substantially asherein shown and specified.

2. In a soda-fountain, the plunger J, having a rigid rod, F, passage h,valve 2', annular washer j, and packing-ring 7a,.all constructed,combined, and arranged substantially as set forth.

In witness whereof I have hereunto signed myname in the presence of twosubscribing witnesses.

JOHN B. CHAPMAN.

' Witnesses:

G. B. MCLELAND, S. J SMITH.

The

